Valve-spring lifter



Aug. 21, 1923.

H. A. COOPER VALVE SPRING LIFTER Filed Avril 10. 1922 .H. O 0 070a?"INVENTOR ATTORNEY WITNSS Patented Aug. 21, 1923.

UNITED STATES HENRY a. ooornn, or WEST UNION, onro.

VALVE-SPRING LIFTER.

Application filed April 10,

T a all whom it may concern Be it known that I, HEN Y A. COOPER, acitizen of the United States, residing at West. Union, in the county ofAdams and State of Ohio, have invented new and useful Improvements inValvearing Lifters, of which the following is a specification.

My present invention has reference to a valve spring lifter.

hly primary object is to produce a device for lifting the valve springsof automobiles which may be supported from either the manifold or theengine block, and adjustable to engage springs of varying lengths, andwhich. when operated, to compress the spring will be selfsustaining insuch position so that both hands of the operator are free to withdrawthe pin from the valve stem and to remove the valve from its seat.

A further object is to produce a valve spring lifter for internalcombustion motors that includes a yoke for arrangement over the manifoldor for engagement with the engine block, said yoke having swivellyconnected thereto a lever which in turn has swivelly connected therewiththe valve engaging fork, and whereby, when the lever is swung upwardlywith respect to the yoke, the fork will also be moved in the directionof the yoke and the spring compressed, the connection of the lever withthe yoke being such as to hold the fork in raised position, so thatfurther attention of. the device by the operator will not be required.

It is a still further object of the invention to produce a springcompressor for the purpose set forth which is characteristic ofsimplicity, combined with cheapness in manufacture and efiiciency inoperation.

The drawings, which accompany and which form part of this specification,illustrate therein a satisfactory embodiment of the improvement reducedto practice, and wherein:

Figure 1 is a view illustrating the application of the improvement, thedevice being supported from the manifold of the engine, and the springbeing compressed.

Figure 2 is a sectional View of the device per so, on the line 22 ofFigure 1, showing the arrangement of parts before compressing thespring.

Figure 3 is a view showing the yoke of the improvement attached to theengine block. the latter being in section.

Referring now to the drawing in detail, the

1922. Serial No. 551,099..

numeral 1 designates the cross sectionally U-shaped supporting elementor yoke of the improvement. As disclosed in Figure 1 of the drawing, theyoke 1 is shown applied to the manifold 2 of an internal combustionengine 3. while in Figure 3 I have shown the yoke attached directly tothe engine block. It is, however, important that the support 1 be soshaped as to engage the manifold, as by such construction the necessityof removing the engine manifold in compressing the valve springs will beobvi ated.

The yoke l is preferably gradually decreased in width from its outer toits inner end. the said inner end or arm of the yoke having its outerface formed with an extension providing a lip 2. and the widened orouter arm of the yoke being slitted at points adjacent to its edges andthe metal bounded by the slits bent inwardly to form the same with atongue 3. Both the lip and tongue are provided for engaging parts of theman ifold or parts of the engine block.

For distinction, the outer and widened arm of the yoke is indicated bythe numeral 4, the same having thereon a pair of spaced outwardlyextending lugs 5. and between these lugs there is arranged a block 6 provided at its ends with trunnions 7 that pass through aligning openingsin the lugs 5. Pivotally secured, as at R to the outer face of the block6 there is one end of a lever 9, The lever 9 has swiveled thereon, at apoint a suitable distance from its pivot R, an outwardly extending blocki l. The block has an opening therelhrongh. and in this opening there isreceived the threaded end of a rod 11. The rod 11 has its outer or lowerend rounded. as at 12 and its extremity widened. The widened portion 13is cut away from its outer end to provide the said rod with a fork 14-,the inner edge of the fork being rounded. and the upper surface thereofbeing concaved. The fork, of course, is designed to be arranged over thevalve rod 1.5 to engage the springs l6 thereon. The threaded end of therod. ll is engaged by a winged nut 17 which, of course, contacts withthe block 10. By adjusting the nut the forked end of the rod may beproperly regulated with respect to the spring it is to engage. vVhenbrought to such position, the lever 9 is swung upwardly on its pivotalconnection with the block 8. thus raising the forked rod 11 andcompressing the spring 16 to permit of the holdingpin thereof beingremoved from the valve rod 15. The lever, when swung to its upperposition holds the forked rod 11 thereon against movement, so that themechanic, after once compressing the valve need pay no further attentionto the device.

It is thought that the foregoing description, when taken in connectionwith the drawing; will fully set forth the constructi'on, operation andadvantages of the improvement to those skilled in the artto which suchinventions relate, it being understood, however, that the illustrateddescription refers only to a Satisfactory embodiment of the improvementas it now appears to me and that I am entitled to all such changestherefrom as fall within the Scope of what I claim. For instance, theemployment of the block on the yoke and the block on the lever are notessential features of the construction, as the lever may be swivellyconnected to the yoke in other means and the forked rod 12 may likewisebe swivelly connected to the rod by other means.

Having described the invention, I claim 2-- l. .l n a valve springcompressor, as herein described, a yoke having, an inwardly directedtongue on its outer arm and an out wardly directed lip on its inner arm,a lever swivelly connected to the outer arm, and a forked rodadjustablyassociated with the lever and swivelly secured thereon.

In a valve spring compressor, as herein described, a yoke support, ablock pivotally associated therewith, a lever pivoted to the block, ablock pivoted to thelever and extending outwardly therefrom, a forkedand threaded rod passing through the last mentioned block, and a nutscrewed on the rod and contacting the block. V

In testimony whereof I aflix my signature.

HENRY A. COOPER.

